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Great Hall of the Biblioplex

3 printings listed in our catalog, from newest to oldest.

Great Hall of the Biblioplex, Secrets of Strixhaven Promos printing
Secrets of Strixhaven Promos PSOS · No. 257p 2026-04-24

Card text

Land
{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell. {5}: If this land isn't a creature, it becomes a 2/4 Wizard creature with "Whenever you cast an instant or sorcery spell, this creature gets +1/+0 until end of turn." It's still a land.
EDHREC rank #8251 Rare Not on the Reserved List
Seen in store
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The 3 printings

All, with their prices ↓

Standard ✓ Legal
Pioneer ✓ Legal
Modern ✓ Legal
Legacy ✓ Legal
Vintage ✓ Legal
Pauper ∅ Not legal
Commander ✓ Legal
Oathbreaker ✓ Legal
Brawl ✓ Legal
Historic ✓ Legal
Timeless ✓ Legal
Alchemy ✓ Legal
Explorer ∅ Not legal
Gladiator ✓ Legal
Penny ∅ Not legal
Duel ✓ Legal

Official rulings

1 ruling · in English, source Scryfall

If this land becomes a creature but you haven't controlled it continuously since your most recent turn began, you won't be able to activate its mana ability or attack with it that turn.

2026-03-20 · Wizards of the Coast

All printings